Exploring the DGLAP resummation in the JIMWLK Hamiltonian
Exploring the DGLAP resummation in the JIMWLK Hamiltonian
We explore the recently derived equation that resums DGLAP corrections to the JIMWLK Hamiltonian in the simplified setting of the SU(2) gauge theory. We solve the equation numerically for the scattering matrix of a dressed gluon for a particular initial condition, that corresponds to a dipole initial state. As expected, the $S$-matrix of a single dressed gluon state ceases to be unitary if evolved to significant $\ln Q^2/Q_s^2$. Our numerical results indicate an interesting universal (independent of the coupling constant) pattern for this deviation from unitarity.
Néstor Armesto、Víctor López-Pardo、Alex Kovner
物理学
Néstor Armesto,Víctor López-Pardo,Alex Kovner.Exploring the DGLAP resummation in the JIMWLK Hamiltonian[EB/OL].(2025-07-19)[2025-08-16].https://arxiv.org/abs/2501.19250.点此复制
评论